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951 Series Submittal
850 Series Engineering/Performance Data
Available 4" thru 40" round
PERFORMANCE DATA FGAD Series Engineering/Performance Data
Volume Damper Low-Leak OBD 3000-0BDLL-28X18 Smoke-Fire Damper 951 Series Submittalh3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3.
